Winding machine



Oct. 8, 1940. E Jl ABBQ-i-Ty 2,216,725

WINDING MACHINE Filed Aug. 24, 1936 5 Sheets-Sheet l Mya,

E. J. ABBOTT WINDI'NG MACHINE Oct. `v8, 1940.

Filed yAug. 24, 1936 5 Sheets-Sheet 2 Z/Wenk? f mani z /Wa Oct. 8, 1940.E. J. ABBOTT WINDING MACHINE Filed Aug. 24, 1936 5 Sheets-Sheet 3 @@fow@EF/:yan

E. J. ABBOTT Y wINnINt, MACHINE oct. s, 1.94m.

Filed Aug. 24, :21935 5 Sheets-Sheet 4 l Oct. 8, 1940. E; J, ABBOTTb2,216,725

WINDING MACHINE Filed Aug. 24, '1936 5 Sheets-Sheet 5 Man/1 .mardi Jazf4 g'ymymy Patented Oct. l8, 1940 ParentI OFFICE' WINDING MACHINE EdwardJ. Abbott, Wilton, N. H., assigner to Abbott Machine Company, Wilton, N.H., a corporation of New Hampshire Application August 24, 1936, serialNo. 91,510

Claims.

This invention relates towinding and similar machines which act to windpackages of textile yarn and the like, andy is of particular'applicability to traveling spindle winders of the general typedescribed in the UnitedStates patents to Edward J. Abbott'Nos. 1,699,639and 1,993,910. Among the objects of the invention are to provide animproved construction oi'traverse device, to provide improvedlubricating means for the package-driving roll, to provide for greater'winding speed, and to improve the winding of conical packages'ontraveling spindle winders by making provision for a loose ring oranalogous element under the tip of the cone. Further objects ofinvention are to provide improved mechanism capable of use in atraveling spindlewinder for breaking up the tendency toforrnribbon-wind, to provide. an improved driving mechanism for thepackage-driving rolls of the winding units, and

,to provide an improved conveying mechanism for causing the windingunits to travel.

Other objects of invention and features of advantage and novelty wii beapparent from this specification and its drawings wherein the inventionis explained by Way of example.

vIn the drawings Fig. i is a front elevation of the upper or headportion of a winding unit according to this invention, parts of theunitbeing removed and broken away for clarity oi illustration;

Fig. 1a is a diagrammatic plan view of an endportion of a traveling unitwinding machine, showing several ofthe eXibly-connected travelingwinding units and portions of the straight and curved path of travelthereof, the remaining winding units being omitted for simplicity ofillustration.

Fig. 2 is a left end elevation of the unit ofFig. 1, showing the unit ona section of the track of a traveling spindlewinding machine;

,Fig. 3 is a plan view of the unit of Figs. 1 and 2, 'with certainadditional parts broken away;

Fig. 4 is a fragmentarysideelevation, showing a portion of the windingunit conveying chain and one of its sprockets;

Fig.' 5 is a detail of a part of the driving and ribbon-breakingmechanism off the unit of Fig. 1,

Fig. 6 is`a. fragmentary section on the line 6-6 of Fig. 5, showing thecontour of the ball gr'oove in the cap of Fig. 5';

Figs. 7 to 19 inclusive illustrate alternate forms one of the two halvesof the pulley of Fig. 10;

Fig. 12 is a right elevation of the cap of Fig. 10;.

Fig. 13 is a left elevation of an alternate form of connection betweenthe traverse cam and the package-driving roll;

Fig; 14 is a sectional View on the line Ill-I4 0f Fig. 13;

Fig. 15 is a view of the elements of Fig. 13 from the front of thewinding unit;

Fig. 16 is a left elevation of a further alternate form of connectionbetween the traverse cam and the package-driving roll;

Fig. 17 is a view oi the elements of Fig. 16 from the front of thewinding unit, with the belt removed, showing particularly the two halvesof the driving pulley;

Fig. 18 is a left elevation of the elements of Fig. 16, with the twohalves of the driving pulley in a diiferent relative position; and

Fig. 19 isa view similar to Fig. 16 with the two halves of the pulley inthe relative positions of Fig. 18.

For simplicity of illustration, the lower part of thewinding unit, whichcan have the form of any of those' shown in the above-mentioned Abbottpatents, Ais omitted from the drawings, it being understood thatthe'winding unit of this application has a suitable bobbin holder fromwhich yarn `y runs to the tension device I I, slubcatcher I2 and overthe'detector wire I3 (Fig. 2)

casing I6 enclosing the traverse cam I1. As inldicated in Fig. l, thecasing I6 is closed at its left side by aplate I8 and at its right sideby the plate-like side of a motor housing I9, each of which carries aball bearing mounting 20 for the shaft 2| of the traverse cam. Anelectric motor 22 preferably of the three-phase type is contained in themotor housing I9 and has its armature 23 fast on the traverse cam shaft2l.

The traverse cam I'| is'preferably of the construction .described in thecopending United States patent applicat'ion'of Edward J. Abbott, 55

Serial No. 506,530, filed 'January 5, 1931, that is, an essentiallyysolici roll of steel, case-hardened in the region of its grooves 25,which latter cross and create a quick-traverse motion of Va cam follower26. y

A round rod 21, near the periphery of cam I1,

' defines the path of travel of a slider 28 to which the cam follower 26is pivoted. Slider 28 carries an extension 30 which is bent upwardly at3| and notched at 32 to receive the yarn y which runs over the upperface '33 of the casing. The upper portion of the casing is provided withan accu`- rately finished lower surface 34 which constitutes one guidesurface for the extension 30 of the slider, and a parallel accuratelynished surface 35 or' the casing constitutes another guide surface forthe extension 30 of the slider 28. These guide surfaces, which are theopposite walls of a slot, y

in ball bearings 40 carried by the end plate I8 and motor housing I9.

Although the present invention is applicable to winding cylindricalpackages of yarn, it is shown in its preferred embodiment as constructedto Wind conical packages. Thus the cam I1 preferably has its groove 25formed with an 'accelerated taper at the left end, to increase theconicity of the package as it grows.

In the past, in winding cones on traveling spindle winders theconstruction of the machine has beensuch as to apply rotary drivingforce to ,the entire length of the cone. For example, in 4rotating thetraveling cone by the friction of a long tractor roll along which thecone is slid, the

' tractor 'roll touches and rotates in contact with both the tip and thebase portions of the cone. However, it is preferable that the tipportion of a winding cone be not frictionally driven, since if drivingcontact be had with the entire length of cone the tip portion ofthevrotating cone will constantly slipbackwards with respect Yto theVrotating drive roll because the surface speed of the small tip portionof the cone is necessarily slowerthan those of the larger middle andbase portions. 9

In the illustrated machine, 'this problem of driving a. cone in Aatraveling spindle Winder is satisfactorily met by providing the packagedriving roll 39 with a loose ring portion 40 thereon at the left end ofthe roll 39 where the tip part of the cone lies. Ball bearings 4I, 42(Fig. 3), carried by roll 39, in turn carry the loose ring portion 40,permitting free rotation of the roll 39 with relation to the ringportion 40. Rubbing of the tip part of the cone by the drive roll isthus avoided.

The casing I6, which is substantiallyclosed except for the slit in whichthe traversing yarn guide 3I runs, serves as an oil-reservoir forlubricating all of the high speed parts of the traversing andpackage-driving mechanism. Oil rings 45 and 46 (Fig. l) 'carry oil fromthe bottom of the casing up into the region of ball bearings 20, 2Iwhich carry the load of the cam and motor, and the rotation of the oilrings and cam also throws nely divided oil onto all the parts of the cam25,

guide rod 21 and slider 28 that are subjected to friction. The ballbearings 41 at both ends of the package-driving roll 39 also receive aspray or mist of oil from the casing by means of oil conduits leadingfrom the interior of the casing I6 to these bearings, one such conduitbeing indicated at 48 in Fig. 1. The improved lubrication of thehigh-speed driving parts of the device, is ot substantial assistance inenabling the winding unit to be run smoothly and quietly at very highwinding speeds -such as 1000 yards per minute.

An oil-filling cup 50 and conduit 5I connecting the cup to the casing,permit the latter to be supplied with oil in a convenient manner.

Each of the several winding units `of the machine is connected by asuitable bracket 85 and pivot pin 86 to a link of a chain 81 which isshown in Fig. 1a is common to all of the units and runs in an endlesspath around the machine on two sprockets, one of which is driven.Heretofore, in order to compensate for the eventual wear in the chain,it has been necessary to remove one or more links from the chain (whichrequired a new machine initially` to have extra odd links in the chainand hence an undesirable marked inequality of spacing of the windingunits tending to disrupt the timing of any automatic device which itmight be desired to have' operate on the units in synchronism with thechain movement) or else it has been necessary to shift the axis of oneor bcth of the chain sprockets to tighten the chain (which had theeffect of undesirably rendering one or both. Vsprockets non-concentricwith its adjacent4 semi-circular track portion of the machine).

The present invention avoids these difculties by providing the chainwith aplurality of adjustable link pins, preferably spaced at intervalsaround the endless chain, so that Fby adjustment of the severaladjustable link -pins or so many of them as is necessary, the chain canbe kept tight without shifting the axes of the sprockets or introducingany marked differences between the spacing of the winding units on thechain'. Referring to Figs. 3 and 4, each of the adjustable link pins 90is rotatable in the upper and lower forks of the link in which it ismounted, and has an eccentric middle portion 9| which engages the nextadjacent link. Each pin 90 can be rotated by means of a screw driver,the head being slotted at 92 for this purpose, and the chain thustightened. A detachable pin 93 tting in a corresponding hole in thelink, is adapted to engage any one of a plurality of recesses in thehead of the pin, such as indicated at 94 and 95, thereby to hold the pinin its adjusted position.

Heretofore in traveling spindle winding machines provision has been madefor breaking up the phenomena of ribbon wind by providing a special formof drive from the non-traveling portion of the machine to the traversedevice. Thus in a United States patent application of Edward J. Abbott,Serial No.,476,776, filed August 21, 1930, there is disclosed aspecially shaped tractor roll which drives the traverse devices at'varying speeds, as the traverse devices move along said roll. Thepresent invention provides a new form of ribbon-breaking mechanism ofsufficiently simple and compact form to be made a part of each windingunit of a multiple unit winding machine, and vpermit the traversedevices ofthe several units to be independent of any special form ofdrive from the non-traveling vportion of the machine.

' In the several embodiments of this new ribbonbreaking device, there isprovided a driving conv 120 by any simple wire spacer.

the spaced balls 51. t 59 is curved with high points 120 apart and in- Inection comprising cooperating frictional driv- :ing and drivenelements, which thus introduces a slip between the, driving and thedriven element.

'I'he slip or differential motion between these elements is thenemployed to provide a relatively slow variation of the ratio between thetraverse cam speed and the winding package drive rollI speed.Preferably, for simplicity, either one or both of the 'aforesaidfrictional driving and driven elements which introduce the slipconstitutes a part of or is associated with the driving connectionbetween the cam and package roll.

Referring particularly to Figs. 1 and 3, the

shaft 2| of the traverse cam carries fast thereon the righthalf 53 of a.split V-shaped pulley,'this right half pulley being suitably detachablykeyed or otherwise detachably secured to shaft 2| The left -half 54 ofthe pulley is loose but is continually forced to the left by the actionof the V- shaped belt 55 running thereon. The left half 54 of the-pulley is provided with a groove 56 which receives ball bearings 51spaced apart at say i A cap 58 (Figs. 1, 5 and 6) fast on shaft 2|,-(but detachableby unscrewing) .is likewise grooved at 59'to receive Thecontour of the groove termediate low points, as shown in Figs. 5- and 6,so that movement ofthe series of -ba-ll's 51 along the circular groove59` alternately forces the balls 51 and loose half 5 4 of the pulley tothe yright (as the' bans ride on kthe high parts of the groove) and thenallows them to return to the left under the influence of the wedgingaction of the belt55. i Y l The V-belt 55 is frictionally driven by thetight half 5 3 of the pulley and in turn drives a small pulley 60 on theshaft of the package drive tween thetight half 53 of the pulley and thebelt 55, and accordingly the loose half 54 of the pulley I is driven bythebelt at a slightly slower speed than-that of the tight half 53, camshaft 2|. and

cap 58. The resulting differential movement between the loose half 54 ofthe pulley and the cap '58 causes the balls 51 alternately to rideuponthe high points and then the low points of the ball groove 59 in cap2 I, with the result that the loose half 54 is alternately forced towardthe tight half 53 and then allowed to move away from the tight half.When the halves of the pulley are closest together, the effectivediameter of the driving pulley is largest and when the halves of thepulley are farthest' apart the effectivel diameter of this pulley issmallest. 'Ihis continual change in the effective diameter of the pulleyslightly varies the speed of the belt 55, driven pulley 60 and packagedrive roll 39 with respect to the traverse cam and so breaks up ribbonwind.

g In the modification of Figa-*7, '8 'and' 9, the tight pulley half 53is arranged in the same `manner as pulley half 53 of the embodiment ofhalf puneytsa slide incontact with the cam-like surfacev 65 and contactalternately' with the high and low portions thereof, thus producing anaxial movement of the left Ahalf 54*i toward and from There is acontinualslight slippage be- 3. the right hair. The v beit, which can bethe same as belt 551s thus driven at continually varying speeds. l

The modification of Figs. l0, 11 and 12 is generally-similar to that ofFigs. 7, 8 and 9 but dif- 5 fers therefrom in that the detachable cap58b is extended to the diameter of the .left pulley half 54b and thatinstead of the left pulley half carrying balls51a, as in Figs. 'I' to 9,the left pulley half 54Da carries on its left face a. cam surface 66 10similar to the cam surface 65b on the cap. In

this case the relative movement between the left loose half 54h and thecap element 5|!b causes the high points on the cam surface 66 to contactalternately with the low points on the cam sur- 15 face 65h and'thenwith high points on the latter cam surface, with the effect ofcontinually varying the effective diameter ofthe pulley and hence thespeed of the belt 5 5.

In the modification of Figs. 13, 14 and'l, there 20 is substituted forthe split pulley on the traverse =cam shaft 2| a cam cylinder 10, keyedor otherwise detachably tight on the shaft 2| and having a cam groove 1|of slight pitch on its'periphery.

A ring gear 12 loosely fits around cam cylinderl 25 10 and is connectedthereto by three pinsf14 which loosely enter the cam groove 1|. In placeof the pulley 60 in the shaft of the package drive roll,v thereissubstituted a detachable gear 18, meshing -with the ring gear 12.bodiment, there 'is a frictional drive between the cam -cylinder 10 andthe ring gear 12; a slippage occurs between these parts, and as the camcylinder moves slowly ahead of the'ring gear the cam groove 1| reacts onthe pins 14 to shift the ring 35 lgear 'axially to the left and right inFigs. 14 and 1 5. `.Referring now to Fig. 15, the teeth on the meshingring gear 12 and gear 18 are somewhat inclined to the axes of thesegears. Therefore,

an axial shift of the ring gear in one direction ac- 40 celera'tes thegear 18 while a shift in the opposite direction retards the gear 18,thus disrupting ribv bon wind.

In'ithe modification of Figs. l16 to 19 inclusive,

the traverse cam shaft 2| carries two half pul- 45 leys 53c and 54C,either one of which is loose on the shaft and the other one of which isdetach ably keyed or otherwise detachably secured tightly on the shaft,these two half pulleys .together forming a generally crown-shapedrim.The 50 package drive roll shaft carries a crown pulley 60, and a plainbelt 55d runs on the two pulleys.

Each of the two halves 53.c and 54 is formed at its rim with a pluralityof flattened portions 80.

The tightone of the two halves, for example 55 left half 546,frictionally'drives the belt 55C, which 4in turn rotates the loose half,for example half 53. The slippage between the tight half and. the beltthusresults in a continual slow change in angular position of the tightand loose halves of -00 the pulley. When, as in Figs. 16 and 17, theflattened places on the two halves are out of correspondence (i. e. donot match), the effective Vvperiphery of the combined pulley is at itsmaximum. On the other hand, when the flattened 65 portions' of the twohalves come into correspondence or matching relation, as in Figs. 18 and19, the effective periphery of the combined pulley is at its minimum.'Ihe continual change in effective' periphery of the combined pulleyresults 70 in a.' continuall slight change in speed of the package driveroll, which prevents ribbon wind. f While in the foregoing exampleofmechanism for breaking up ribbon wind, the traverse cam shaft is shownas equipped with the mech- 75 In this em- 80 vio anism which introducesthe slippage and changes the speed ratio of the connection between thecam shaft and package drive roll, obviously such mechanism can beapplied to the package roll shaft. That is, for example, in Fig. 1, thesplit pulleyv having thel described speedchanging characteristics can beapplied in place of the plain V-pulley 60, and a plain V-pulley beapplied to the traverse cam shaft. The same interchange of position ofthe elements can be made in each of the modifications. since it isdesired to use a relatively large pulley or gear `on the traverse camshaft and a relatively small pulley or gear on the package drive rollshaft, it is advantageous to locate the` speedchanging pulley or ringgear on the traverse cam shaft where it can advantageously have arelatively large diameter, and to locate the simple pulley or gear onthe package roll shaft Where it can advantageously have a smalldiameter.

All of the several described embodiments have an advantageous feature ofease of adjustment of the mean speed ratio between the traverse cam andthe package drive roll. When it is desired to alter this mean speedratio to wind a package of different pitch of Winding, this can be doneeasily by merely detaching one or both of the pulleys,

or both of the gears of Figs. 13 to l5, and replacing each detachedpulley or gear with a similar one of different diameter. Neither themotor nor 4the motor speed need be changed in effecting this windingpitch by a simple change of one of the4 pulleys or a pairof the gearsrenders it possible to produce a wide range Ofpatterns' of winding onthe unit with the saine cam profile and' motor speed. l

A further feature\of each of the several embodiments of the invention isthat the devices for preventing ribbon wind are effective on each of theseveral winding units of the machine both while traveling and also whilestationary, so that when desired the traveling-movement of thev unitscan Ibe stopped and the units left winding without the occurrence of-ribbon wind on any of them.

I claim:

1. A winding unit having therein a package driving device and a traversedevice, means for driving one of said devices and a driving connectionbetween said devices for breaking up ribbon wind, said connectionincluding cooperating frictional .driving and driven elements, thevdriven element .slipping relatively behind the driving element as thedriving element drives the driven element and means operated by therelative slip between said frictional driving and driven elements tovary the speed ratio of the said driving connection.

2. A winding unit having therein apackage driving device and a traversedevice, means for driving one of said devices and a driving connectionbetween said devices for breaking up ribbon Wind, said connectionincluding cooperating frictional driving and driven elements, the drivenelement slipping relatively behind the driving element as the drivingelement drives the driven element, and cam means for varying the speedratioy of the driving connection, and means responsive to the relativeslip between said friction driving and driven elements for controllingthe operation of said cam means.

However,

3. A winding unit having therein a package driving device and a traversedevice, means for driving one of said devices and a driving connectionbetween said devices for breaking up ribbon wind, said connectionincluding a pulley having a variable effective diameter andrincludingtwo elements, means for driving' one of said elements frictionally fromthe other element so as to cause a slip; and means governed by saidrotary slip of one of vthe said elements behind the other for varyingthe effective diameter of the pulley. A

4. A winding unit having therein a package. driving device and a,traverse device, means for driving one of said devices and a variablespeed connection between said devices, the unit including a drivingelement and a driven element frictionally operated by the drivingelement with resultingslip between them, the said. variable speedconnection including discontinnous surfaces on the peripheries of Abothsaid driving and driven elements adapted to be brought alternately intocorrespondence and into non-correspondence by the relative slip betweensaid elements, thereby to vary the effective diameter of the combinedperipheries of said driving and driven elements.

5. A winding unit having therein a package driving device and a traversedevice, means for 'driving one of said devices, and a driving connectionbetween said devices for breaking up ribbon wind, said connectionincluding intermeshing gears of which the teeth are at an angle to theaxes of rotation of the gears, means for frictionally driving one ofsaid gears, and means operated bythe slip occurring in said frictionaldriving to cause a shift of one of the gears, such as to vary the speedratio between said devices. i

. 6I A winding unit having therein a package driving device and atraverse device, means for driving one of said devices, and a drivingconnection between said devices for breaking up ribbon wind, saidconnection including intermeshing gears of .which the teeth are at anangle to the axes of rotation of the gears, means for frictionallydriving one of said gears, and a cam effective as a consequence of theslip occurq ring in said frictional driving to cause a shift of one ofthe gears, suchv as to vary the speed ratio between said devices.

7. A winding machine having 'therein a packagedriving device and atraverse device, means for driving one of said devices, and a variablevspeed connection between said devices, the machine including cooperatingelements one of whichL islocated externally of the other and one ofwhich drives the other, the said elements fitting each other loosely,and the machine including means actuated by difference in angularAvelocitybetween said loosely fitting elements for causing the variablespeed connection alternately to increase and decrease the speed ratiobetween the traverse device and the package driving device.

8. A winding machine having therein a package driving 'device and atraverse device, means for driving one of said devices, cooperatingelements one of which is located externally of 'the other and one ofwhich is adapted to drive the other with resulting slip, the saidlelements fitting each other loosely, a cam follower` on one of saidelements and a cooperating cam on the other of said elements having apath such that differencein angular velocity between said elementsshifts -respect to the other said element, themachine one of saidelements axially back and forthwith erse device including inclined teethon said axially movable element and a gear meshing with said t teeth,whereby axial movement of said axially movable element alternatelyincreases and decreases the speed ratio between the traverse device andthe package driving device.

9. In a winding machine, the combination oi cooperating rotary elementsone. of which is located externally of the other, the said lelementsiitting each other loosely, a cam follower on one of said rotaryelements, and a cooperating cam onthe other one of said elements, thecam having a path such that difference in `angular velocity between saidelements shifts one of said elements back and forth axially with respectto the other element. y

l0. A winding machine having therein a package driving device and atraverse device, means for driving one of said devices, and a variablespeed c onnection between said devices including a pulley of variableeffective diameter, themachine including a driving element and a drivenelementfrictinally operated by the driving element with resulting slipof the driven element behind the driving element as the driving elementdrives the driven element, and means actuated by the relative slipbetween` said ,driving and driven elements for alternately increasingand decreasing the eective diameterof said. pulley.

1l. A winding unit having therein a package driving device and atraverse device, means for driving one of said devices, frictionallyassociated elements in the unit, one of said frictionally associatedelements being adapted to be driven by the other with resulting slip ofthe driven element behind the driving element as the driving elementdrives the driven element, a driving connection between the traversedevice and the package driving device including a two-part pulley, andcam and cam follower means for varying the relation between the parts ofthe pulley, said cam and camfollowermeans being responsive to slipbetween the said friction'ally associated elements.

12. A winding unit having therein a package driving device and atraverse device, means for driving one of said devices, a connectionbetween said devices including a pair of gears acting to transmitdriving force, means for alternately advancing and retarding the angularmovement of rotation of one of said gears with respect to the angular`movement of rotation of the other f said gears, the unit includingdriving and driven elements which slip with relation to each other, andmeans responsive to said slip for actuating said advancing and retardingmeans.

13. A winding unit having therein a package driving device and atraverse device, means for driving one of said devices and a variablespeed connection between said devices, the variable speed connectionincluding a belt and two pulleys, one of said pulleys having two partseach having its periphery in the form of a series of discontinuoussurfaces, and means for alternately bringing the parts ofthe two-partpulley into angular relations such that their surfaces match and then donot match, to vary the effective diameter of said two-part pulley, andaccordingly the speed ratio between the traverse device and packagedriving device.

14. A traveling unit winding machine having therein a plurality ofwinding units each'including a winding package drive roll and a traversedevice, traveling with the unit, the machine including means for causingthe several units to travel in a path having straight and curvedportions and means for supplying driving power to the severalunits tooperate them to wind during said travel, and each of said units havingtherein a variable speed connection between the traverse device and thewinding package drive roll and means for automatically varying the speedratio of said connection during winding, to break up ribbon wind.

15. A traveling unitwinding machine having therein a plurality ofwinding units each including a winding package drive roll and a traversedevice, traveling with the unit, the machine including -means forcausing the several units to travel in a pathhaving straightand curvedportions and means for supplying driving power to the several units tooperate them to wind during said travel, and each of said units havingtherein a variable speed connection between. the traverse device and thewinding package drive roll and means contained by the traveling unit andoper.- able independently of travel thereof for automatically varyingthe speed ratio of said connection during winding, to break up ribbonwind,

16. A winding machine having therein a plu` rality of flexibly connectedtraveling units each including a winding means and a quick-traversemeans associated therewithmeans for causing the units to travel in apath during winding, each unit including a means for disrupting synchro--chine including means for causing the'several units to travel in a pathhaving straight and curved portions land. means for supplying drivingpower to the several units to operate them to windv during said travel,and each of said units having therein -a driving elementand a drivenelement cooperating frictionally with the driving element withresultingslippage and means operating as a consequence of said slip-` page to.vary the ratio between the speeds of the package drive roll andthetraverse device. 18. A cone winding unit for traveling spindle winders,having thereina cone holder and a roll on which the winding-cone isadapted to rest during winding, the said roll including a winding-conedriving portion and a loose element rotatable with respect to thewinding-cone drivholding a winding cone package, a rotary packagedriving roll havingdriving contact with less than the entire length ofthe Winding cone, a loose element rotatable with respect to theconedriving portionr of the roll and adapted to support the tip portionof the cone lduring winding, and a driving connection between thetraverse device and the roll.

20. A traveling spindle winder having therein a plurality of movablewinding units each of which includes: a package driving roll on whichthe winding package -is adapted togrest during Winding,- a traverse camwhichv determines the traversing throw of the strand winding on thepackage, a motor connected to ldrive the traverse cam at approximatelyconstant speed and a driv-l ing connection between the shaft of the camand the package driving roll comprising atleast one l detachable part topermit change therein,`there by to permit different winding speeds withthe same traverse cam and motor speed.

21. A traveling spindle Winder having therein a plurality of movablewinding units each of Which-includes: a package driving roll on which'the winding package isadapted to rest during Winding, a traverse camwhich determines the roll and 4a belt connecting the pulleys,at leastoneof the pulleys being detachable to permit substitution of `a pulley ofdifferent diameter v.thereby to permit'diierent winding speeds with thesame traverse cam and motor speed.

22. A traveling spindle Winder having therein a plurality ofmovablewinding units each of which includes: a package driving roll onwhich the winding package 'is adapted to rest during winding, a traversecam which determines the traversing throw of., the strand winding onlthe package, a traverse cam shaft, a motor connected to drive thetraverse cam at approximately conl, stant speed and a belt' and pulleyconnection between the shaft of the 'traverse cam and the packagedriving roll. l

" 23. A traveling spindle Winder having therein a plurality of movablewinding units each of which includes: apackage driving roll on which thewinding package is adapted to rest during winding, a traverse cam whichdetermines the traversing throw of the strand winding on the package, amotor connected to drive the traverse cam at approximatelyl constantspeed and .,a driving connection between the shaft of the cam and thepackage driving roll comprising gears associated with the cam and roll,said gears being detachable topermit substitution of gears of differentsizes, thereby to permit different winding speeds with the same traversecam and motor speed.

24. A traveling unit Winding machine havingA therein a plurality lofWinding units each including a Winding package drive roll and a traversedevice, traveling with the unit, the machine including means for causingthe several units to travel in a path having straight and curvedportions, and means for supplying-'power to the several units to operatethem to wind during said travel, and each of said units having therein avariable speed connection between the traverse device and the winding'package drive roll including intermeshing gears having teeth inclinedto their axes and means for automatically shiftinglqne of said gearswith relation tothe other gear during winding, to break up ribbon wind.l

25. A traveling unit cone-winding machine having therein a plurality ofwinding units, means for causing the units to travel in a`. path, eachunit including a traverse device,'meansl for holding a winding conepackage, a-rotary package driving roll having driving contact with lessthan the entire length of the winding cone, a loose element rotatablewith respect to the cone-driving portion of the roll and adapted tosupport the tip portion of the cone during winding, a variablel speeddriving connection between the traverse device and the roll and meansfor automaticaily varying the speed ratio of said driving connectionduring winding to break up ribbon wind.

EDWARD J. ABBO'I'I.

